<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <div id="hello5">
        <p>{{ message }}</p>
        <button v-on:click="reverseMessage">消息翻转</button>
    </div>

    <script src="https://cdn.jsdelivr.net/npm/vue@2"></script>
    <script>
        var vm = new Vue({
            el: "#hello5",
            data: {
                message: "信息"
            },
            methods: {
                reverseMessage: function() {
                    this.message = this.message.split('').reverse().join('')
                }
            }
        })
    </script>
</body>

</html>